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Ich habe den Code für Offline-Speicher in Firefox 3.5, aus http://starkravingfinkle.org/blog/2008/05/firefox-3-offline-app-demo-part-2/ entnommen. Wenn die Seite geladen wird, erhalte ich einen Dialog, der mich auffordert, dass die Anwendung Daten speichern möchte, aber wenn ich Allow drücke, wird der Dialog nicht gelöscht. Die App funktioniert gut bei der Online-Demo auf der Website gegeben. Die Quelldatei die JavaScript enthält, ist wie folgt:Offline-Speicher in Firefox 3.5 für Datei: //
todo.html
<!--
Simple task list application used to illusrate Firefox's offline/DOMStorage capabilities
Author: Mark Finkle
-->
<html manifest="todo.manifest">
<head>
<title>TODO - Offline Demo</title>
<script type="text/javascript" src="json.js"></script>
<script language="javascript">
var taskStorage = "[]";
var storageDomain = location.hostname;
if (storageDomain == "localhost")
storageDomain += ".localdomain";
function loaded() {
updateOnlineStatus("load", false);
document.body.addEventListener("offline", function() { updateOnlineStatus("offline", true) }, false);
document.body.addEventListener("online", function() { updateOnlineStatus("online", true) }, false);
if (typeof globalStorage != "undefined") {
var storage = globalStorage[storageDomain];
if (storage && storage.taskStorage) {
taskStorage = storage.taskStorage;
}
}
fetchList();
}
function updateOnlineStatus(msg, allowUpdate) {
var status = document.getElementById("status");
status.innerHTML = (navigator.onLine ? "[online]" : "[offline]");
var log = document.getElementById("log");
log.appendChild(document.createTextNode("Event: " + msg + "\n"));
if (navigator.onLine && allowUpdate) {
update();
log.appendChild(document.createTextNode("Updated server\n"));
}
}
function httpRequest(type, data, callback) {
var httpreq = new XMLHttpRequest();
httpreq.onreadystatechange = function() { if (httpreq.readyState == 4) callback(httpreq.readyState, httpreq.status, httpreq.responseText); };
httpreq.open(type, "todo-server.php", true);
if (type == "POST") {
httpreq.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
}
httpreq.send(data);
}
function loadList(readyState, status, responseText) {
if (readyState == 4) {
if (status == 200) {
taskStorage = responseText;
var tasks = eval("(" + taskStorage + ")");
var html = "";
for (var i=0; i<tasks.length; i++) {
html += "<input type='checkbox' id='" + tasks[i].name + "'/><label for='" + tasks[i].name + "'>" + tasks[i].data + "</label><br/>";
}
document.getElementById("tasklist").innerHTML = html;
if (typeof globalStorage != "undefined") {
globalStorage[storageDomain].taskStorage = taskStorage;
}
}
}
}
function fetchList() {
if (navigator.onLine) {
httpRequest("GET", null, loadList);
}
else {
loadList(4, 200, taskStorage);
}
}
function addItem() {
var data = document.getElementById("data").value;
document.getElementById("data").value = "";
var tasks = eval("(" + taskStorage + ")");
tasks.push({"name": Date.now(), "data": data });
taskStorage = tasks.toJSONString();
update();
}
function removeItems() {
var tasks = eval("(" + taskStorage + ")");
var newTasks = [];
var items = document.getElementById("tasklist").getElementsByTagName("input");
for (var i=0; i<items.length; i++) {
if (items[i].checked == false) {
newTasks.push(tasks[i]);
}
}
taskStorage = newTasks.toJSONString();
update();
}
function completeItems() {
var tasks = eval("(" + taskStorage + ")");
var items = document.getElementById("tasklist").getElementsByTagName("input");
for (var i=0; i<items.length; i++) {
if (items[i].checked) {
var task = tasks[i].data;
if (task.indexOf("<strike>") != -1) {
task = task.replace("<strike>", "");
task = task.replace("</strike>", "");
}
else {
task = "<strike>" + task + "</strike>";
}
tasks[i].data = task;
}
}
taskStorage = tasks.toJSONString();
update();
}
function update() {
if (navigator.onLine) {
var post = "action=update&data=";
post += encodeURIComponent(taskStorage);
httpRequest("POST", post, function(readyState, status, json) { fetchList(); });
}
else {
loadList(4, 200, taskStorage);
}
}
</script>
<style type="text/css">
body { font-family: verdana,tahoma, arial; }
div#container { width: 300px; }
div#title { font-size: 120%; }
div#subtitle { font-size: 80%; }
div#tasklist { margin-bottom: .5em; }
div#log { font-size: 90%; background-color: lightgray; margin-top: 1em; white-space: pre; }
</style>
</head>
<body onload="loaded();">
<div id="container">
<div id="title">Task Helper - <span id="status">ONLINE</span></div>
<div id="subtitle">simple online/offline demo application</div>
<hr />
<div id="tasklist">
</div>
<input type="text" id="data" size="35" />
<input type="button" value="Add" onclick="addItem();"/>
<hr />
<input type="button" value="Remove" onclick="removeItems();"/>
<input type="button" value="Complete" onclick="completeItems();"/>
<div id="log"><strong>Event Log</strong>
</div>
</div>
</body>
</html>